Incandescent-lamp socket.



' mmesses www F. E. SEELBY.

INGANDFSGBN T LAMP SOCKET.

APPLICATION FILED mY 25, 190s.

Patented Ja11.24,1911.

lNvENToR 25 I MLM 7 ATTORNQYS l? UITE) SLETES l); TENT UFFCE.

FRANK E. SEELEY, OF BRIDGEPORT, CONNECTICUT." ASSIGNQR 'l'O THE BRYANT ELEC- TRIC COMPANY, OP BRIDGEPORT, CONNECTICUT. A CORPORATION OF CONNECTICUT.

INCANDESCEN'LLAMP SOCKET.

Specification oi' Letters Patent.

Application filed May 25. 1908. Serial No. 434.953.. v

To nl! 'whom 'it may Canam:

Be it. known that l', Fmxn E. Sremzy, a citizen ol" the linitr-d States of America, and residiner at Bridgeport. in the Count)Y of l-`airtield and State of Connecticut. hare invented eertain new and useful lmprorements in liaandeseent -lnunp Sockets. of which the following is a speeitieation.

M' invention relates to incandescent lamp .sockets and consists in improvements in the construction and arrangement of the parts as set forth hereinat'terfaltliongh it is to be understood that l do not limit myself to the spee..c forms and eonstrnctionsshown..

The general construction is shown 1n im' appending application Serial'Xo. 307,997..

hut the present invention presents certain advantageous changes therein.

ln the aeeompanyiner drawings in which my invention is shown. lfilure 1 is a plan riew ot' the porcelain hotly with parts appiieo; lfig'. 2 is :in elevation of the .saine wlth the .socket shell secured in place; Fig. 3 is an elw-:ation of the sa me reversed: Fig. i is an elevation with the porcelain in section on the line ML Fie'. l l-`i;'. 5 is a perspective ol' the aetuatiirey spindle ou an enlarged .se-ale and with itsv parts` detached; and Figs. t' and i' are .sectional views at right angles to each other and on an enlarged scale. showing; the hollow lim-:ring 2l and related parts.

-Xs in my prerious derive, l provide :L

horizontal spindle 1H rallying the, eontact pieee. The latter however` instead of having spring! arms to make the contacts, romprises a disk ll oi insulating material, the periphery of which is en! awagv to form a v:series of equally spaced teeh, four being shown. A conducting: hand 12 extends across the face of the disk and unites. opposite teeth. iii-ing carried over the periphery of the disk at these points so as to )resent Suitable contact surfaces. To establish the circuit between the wire terminal 13 andthe shell Il. a spring contact 1? is secured to the terminal plate 1G hy a screw l?, passing through the porcelain hotly and is sprungr into position heneath the disk 1l so that the free. end hears constantly against the lower portion of the periphery of the latter. A second spring l-ontact 1S is held beneath and in Contact dh the shell 14 hy one of the securing,r screws 15, and is angled downward so as to hear against the ripperv por tion of the periphery of the disk, substantiall}Y as shown. lt. will be readily nnder- .stood that upon the rotation of the disk ll. the hand l2 is brought alternatelv into and` out oi' contael with the springr eontart.-s 1 and I3. and. the cireuit..hetween the terminal 1.5 and the .shell .t-l if inns alternately made and broken.

more-eonrenient means for fasteningT the chain to the ratchet wheel or disk 1.() is provided. Adjacent the groovezftl in which the chain is Supported` l arrange radiall)` on the disk a forked claw 21 hctween the tingers o' which a hall link may he readily slipped. The fingers being located on the saine radius of the disk, the strain of the chain is applied thereto in the most efeetire direction. 'l`he principal advantage ot' this arrangement is '-iowever, that it facilitates the attaching and' (letzte-hing of the chain for the purpose of altering' its length as is frequently necessari?` in the installation-of pull sockets. To detach the chain the electrician pulls` it' against the tension of the ratchet spring of his finger o1' a screw driver on the stop Q3, he lifts the Chain out ofthe claw.

)lace the chain he merely rotates the ratchet liaek a snllieient distance to permithim to drop the last1 hall of the'ehain between the lingers of the claw.

The ratchet. .spring :32, one end of which is .secured to the ratchet. disk hy locking an end yaround a rateh punched therefrom, is tensioned lo any desired degree by means of the flanged hollow hearingy :llt for the spindle which serres as :1n abutment: for the spring'. Any satisfactory means for securing the springthereto may be employed, as

titl

Then holding the end- To rei for instance-a hole passing through the,

flange :267` the angled end of the spri entering or passing through the. hole. The bearingr is normally held stationary bj: a Spring 2T, a bump on which enters one of the notches QS in the tlange QG. The ends of the spring are clamped beneath the ott'setf Q9, hy which the standard is seeuredto. the porcelain body. It will be readily iniderstood that the spring;r Q2 is tensionedby merely rotating the bearing 24 by a screw driver or otherwise. IThe spring 27 holdsthe latter in Whatever position it, is grixn. The necessity for disengnging the bearing from an angled hole in the standard 30 and readjusting the same therein is thus obviated. l I do not claim however, to have been the rst to conceive of providing friction or other means for holding the spring abutment. in the position to which it may be adjusted by merely rotating it; in its bearing without preliminary axial displacement.

Modifications of this construct-ion may be readily devised without departing from the scope o'my invention,V and I do not, limit; myself to the details shown.

I claim as my invention: Y

I. A pull sockethaving e spindle carrying a Contact piece, a ratchet for actuating said spindle and ineens for securing;r a pull chain thereto, said means comprising en integral metal chain carrier on said ratchet member and e. radially alinedl forked claw 'struck up from the metal of said carrier adapted to receive u ball link between the "lingers of saidlamsugstntally as de-` scribed.v

2. A pull socket having a switch spindle and a ratchet spring thereon,n combinaton with :in adjustable abutment for said spring comprising a flanged socket pieceformin an end bearing for the switch spindle, sai flange being perforated to receive-one end of the ratchetspring and peripherally notched to receive a deteining member, substantially as described.

1n testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses. Y

FRANK E. SEELEY. Witnesses:

A. H. JONES, C. L. SUNDINE. 

